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US 11,695,149 B2Granted
Isostatic press devices and processes for cylindrical solid-state batteries
AssigneeTeraWatt Technology K.K.
InventorsKen Ogata, Yang Yang, Hajime Hoshi, Masatsugu Nakano, Hiroshi Imoto
Life of this patent
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Abstract
Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell.
Claims20
A cylindrical battery press system, comprising:
- a compression mechanism that, when engaged, causes a first edge of the compression mechanism to be moved toward a second edge of the compression mechanism, thereby decreasing a volume of a first cylindrical void within the compression mechanism;
- and
- a buffer material having a halo-shaped cross-section, the buffer material being installed within the first cylindrical void of the compression mechanism, wherein the buffer material defines a second cylindrical void within which a battery cell is configured to be installed.
A method for compressing a cylindrical battery cell, the method comprising:
- wrapping the cylindrical battery cell in a buffer material, wherein the buffer material has a halo-shaped cross-section;
- after wrapping the cylindrical battery cell in the buffer material, compressing the buffer material using a compression mechanism, wherein:
- a first edge of the compression mechanism is moved toward a second edge of the compression mechanism, thereby decreasing a volume of a first cylindrical void within the compression mechanism;
- and
- the buffer material uniformly distributes pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell;
- disengaging the compression mechanism;
- and
- after disengaging the compression mechanism, removing the cylindrical battery cell from the buffer material.
5 more elements
A cylindrical battery press system, comprising:
- a jelly-roll style solid-state cylindrical battery cell;
- a compression mechanism that, when engaged, causes a first edge of the compression mechanism to be moved toward a second edge of the compression mechanism, thereby decreasing a volume of a first cylindrical void within the compression mechanism;
- a semi-rigid buffer material having a halo-shaped cross-section, the semi-rigid buffer material being installed within the first cylindrical void of the compression mechanism, wherein the semi-rigid buffer material defines a second cylindrical void within which the jelly-roll style solid-state cylindrical battery cell is installed;
- and
- a support structure, wherein the second edge of the compression mechanism is anchored to the support structure such that the second edge does not move relative to the support structure when the compression mechanism is engaged.
2 more elements
Dependencies are inferred from the claim text.